EP2212872B1 - Traffic monitoring system - Google Patents

Traffic monitoring system Download PDF

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Publication number
EP2212872B1
EP2212872B1 EP08841480A EP08841480A EP2212872B1 EP 2212872 B1 EP2212872 B1 EP 2212872B1 EP 08841480 A EP08841480 A EP 08841480A EP 08841480 A EP08841480 A EP 08841480A EP 2212872 B1 EP2212872 B1 EP 2212872B1
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EP
European Patent Office
Prior art keywords
traffic monitoring
monitoring system
controller
unit
detector
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EP08841480A
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German (de)
French (fr)
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EP2212872A1 (en
Inventor
Andreas Behrens
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Jenoptik Robot GmbH
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Jenoptik Robot GmbH
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles

Definitions

  • the invention relates to stationary or mobile
  • EP 0 593 979 A1 Another system comes with the EP 0 593 979 A1 disclosed here, wherein the object is achieved to provide a device by the dynamic processes can be displayed, so that a high evaluation security of drivers and / or vehicle registration and a high recording capacity, for example, more than 2000 recording sequences is achieved.
  • Local power supplies for digital mobile or stationary traffic monitoring systems, such as accumulators or solar power supplies or other generators are to be sized accordingly and are therefore expensive.
  • Low energy consumption is an important criterion particularly in mobile systems and therefore all measures to reduce power consumption directly contribute to the usefulness of such systems.
  • the invention has for its object to provide a way that compared to the prior art for further lowering of the Energy consumption of mobile and / or stationary traffic monitoring systems contributes.
  • a traffic monitoring system consists of the essential functional units sensor for registering a road vehicle, which z. B. with a higher than the permitted speed or driving in red over an intersection, a digital camera for recording the registered road vehicle, a computer for storing all the necessary data and a lighting device such as a flash device, with all but the sensorjansakuhelten In the stand are interconnected by operation and are activated or activated only at necessary times by one another or by a controller.
  • the controller can be an independent functional unit of the traffic monitoring system. An external arrangement is also possible, the controller then communicating only via connecting lines with the individual functional units of the traffic monitoring system. The controller can then, if it is located externally, even put the sensor in standby mode in extreme cases, if z. B. the traffic situation can be expected that no traffic violations of road vehicles can be registered.
  • the system according to the invention extends a traffic monitoring system in such a way that a defined flow logic system only wakes up the functional components and turns on when needed, otherwise they are in stand-by mode.
  • a constantly operable sensor for detecting the traffic violation tries to get by pulsed operation with the lowest possible power consumption.
  • the sensor activates, upon detection of an event, such. As an unauthorized high speed, the camera unit and thus wakes them up.
  • the camera unit remains active until it captures and stores an image and then returns to sleep mode.
  • the defined flow logic also determines when the belonging to the traffic monitoring system computer is activated.
  • the calculator can be woken up by the camera or he can only at regular intervals, eg. Every 10th image, be woken up and activated by the camera.
  • it can be specified in the flow logic that the computer becomes active at certain time intervals or is activated by an external access. However, the computer always goes back into hibernation.
  • the defined flow logic is realized according to the invention by the controller.
  • Fig. 1 a schematic arrangement of a traffic monitoring system
  • the sensor unit 1 according to the invention is constructed so that only the portions of the sensor are constantly operated, which are essential for the signal recording of the event or the speed measurement.
  • active sensors such as radar or laser
  • a transmitting unit 11 which actively emits a wave beam and a receiving unit 12, which receives the wave beam, is always ready for operation.
  • a likewise always operational threshold value decision 13 awakens a detector 14 connected to it only when a detection is to be expected by the exceeding of a predetermined threshold value.
  • a measured value as a result of the detection is relayed to the controller 21 of a camera unit 2.
  • the controller 21 does not have to be constantly ready for operation. It can only be woken up by the detector 14.
  • the controller 21 can also wake the detector 14 to transfer parameters so that the latter stores the parameters or provides information about the set parameters. Detector 14 automatically goes back to sleep mode with little or no power consumption after detection of an input signal or after setting parameters.
  • the sensor unit 1 can only activate the transmitting unit 11 and / or the receiving unit 12 in a pulse-like manner for a short time in order to determine whether a sufficient threshold signal is present. Only when a sufficient threshold signal is present, the transmitting and receiving unit 11 and 12 remain turned on until the detection is completed. Through the break times the transmitting and receiving unit 11 and 12 can be additionally minimize the power consumption.
  • the sensor unit 1 may also be a loop or piezosensor.
  • the transmitting unit 11 is then not available with passive sensors. The detection only begins when a threshold value of the input signal is exceeded.
  • the camera unit 2 is constructed such that the individual components of the camera unit 2 are only active and have a higher power consumption, if this is required by the sensor unit 1 or an access of a connected computer 4.
  • the controller 21 in the camera unit 2 activates an image pickup unit consisting of an electronic photosensor 25 and a photo controller 24 only when a photograph is to be taken. Even a possibly necessary deletion of the photosensor 25 takes place only immediately before the image acquisition.
  • the captured image is stored in a static image memory 26. Any desired backup of the image by a digital signature or encryption can be done immediately before the storage of the image in the image memory 26.
  • the image memory 26 ideally does not consume power in the dormant state to hold the image information.
  • techniques such. B. flash disk can be provided.
  • the controller 21 stores the image information together with the measured value from the sensor unit 1 and the time from a real-time clock 22 in the image memory 26.
  • An image recording simultaneously activates the timely triggering of a lighting unit 3, consisting of its own controller unit 31 and a light emitter 32.
  • the lighting unit 3 can also be woken up by the controller 21 and then go back to a state of rest, which has a lower or no power consumption.
  • the real-time clock 22 of the camera unit 2 is always ready for operation. It should be designed so that only a small operating current is required for the function. Typically, this constant operating current is provided by a long-lasting battery.
  • An optional GPS receiver 27 can be used to set the real-time clock 22. Also, the controller 21 may use the location information of the GPS receiver to store it together with the image information in the image memory 26. The query of the GPS receiver 27 can be made at system startup or at each wakeup. Another memory 23 may be used by the controller 21 to store all measurements from the detector 14 along with the time and location, if any, for statistical purposes.
  • the controller 21 internally stores important parameters needed to control the camera unit 2 and the sensor unit 10.
  • An important parameter is the trigger limit, from which images should be triggered when speeding. If no statistical data is required, then the detector 14 can not wake the controller 21 until there is an overspeed.
  • a connected computer 4 can be woken up by the controller 21.
  • a transfer of the image data can take place and the computer system 4 can again put into a state of rest.
  • the computer 4 can also actively wake up from outside through a timer or network access 41 and wake the controller 21 to retrieve image information or statistical data or set parameters.
  • the controller 21, according to Fig. 1 is an integral part of the camera unit 2, can also be formed in a further embodiment as an independent functional unit.
  • the detector 14, the photo controller 24 and the controller unit 31 can also be integrated into the controller 21, so that the entire flow logic of the traffic monitoring system is realized by the controller 21.
  • the particular advantage is then that the controller 21 could then also be operated externally and could communicate with the traffic monitoring system only via corresponding signal lines, which would not necessarily have to be implemented in terms of hardware. Thus, even the sensor unit 1 could be put into stand-by mode when the traffic situation, eg. B. by temporary road closures, can expect that no traffic violations can be committed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Alarm Systems (AREA)

Abstract

The invention relates to a traffic monitoring system with low power consumption. The object of the invention is to provide an option that compared to prior art contributes to a further reduction of the energy consumption of mobile and/or fixed traffic monitoring systems. The object is achieved by means of a traffic monitoring system composed of the essential functional units of a sensor for registering a road vehicle which travels, for example, at a higher speed than permitted or crosses an intersection at red, a digital camera for recording the registered road vehicle, a computer for storing all the necessary data and a lighting device, such as a flash device, in that, with the exception of the sensor, all the functional units are switched in the stand-by mode and activate one another mutually or are activated by a controller only at necessary times.

Description

Die Erfindung betrifft stationäre oder mobileThe invention relates to stationary or mobile

Verkehrsüberwachungssysteme mit geringem Stromverbrauch. Systeme mit mechanischer Kamera wurden im Wesentlichen von einem Mikrocontroller betrieben, der einen geringen mittleren Stromverbrauch hat. Nur in dem Moment der Verkehrsübertretung erhöhte sich der Stromverbrauch durch die Bildauslösung der mechanischen Kamera und den Blitz. Bedingt dadurch hat der Gedanke eines geringen Stromverbrauches für Systeme mit mechanischer Kamera keine wesentliche Rolle gespielt. Durch den Einsatz von digitalen Kamerasystemen und entsprechenden Rechnern ist der Dauerstromverbrauch sprungartig gestiegen. Die DE 201 02 989 U1 offenbart ein derartiges stationäres System zur Ermittlung und Verfolgung von Geschwindigkeitsüberschreitungen im Straßenverkehr mit zentraler Datenerfassung über Mobilfunknetze. Ein weiteres System wird mit der EP 0 593 979 A1 offenbart, wobei hier die Aufgabe gelöst wird, eine Vorrichtung zu schaffen, durch die dynamische Vorgänge darstellbar sind, so dass eine große Auswertesicherheit von Fahrer und/oder Fahrzeugkennzeichen sowie eine hohe Aufnahmekapazität, beispielsweise von mehr als 2000 Aufnahmesequenzen, erzielt wird. Lokale Stromversorgungen für digitale mobile oder stationäre Verkehrsüberwachungssysteme, wie Akkumulatoren oder Solarstromversorgungen oder andere Generatoren, sind entsprechend groß zu dimensionieren und sind dementsprechend teuer. Geringer Energieverbrauch stellt ein wichtiges Kriterium insbesondere bei den mobilen Systemen dar und deshalb tragen alle Maßnahmen zur Verringerung im Leistungsverbrauch direkt zur Nützlichkelt bel solchen Systemen bei.Traffic monitoring systems with low power consumption. Systems with a mechanical camera were essentially operated by a microcontroller that has a low average power consumption. Only in the moment of traffic violation, the power consumption increased by the image release of the mechanical camera and the flash. As a result, the idea of low power consumption for mechanical camera systems has not played a significant role. Through the use of digital camera systems and corresponding computers, the continuous power consumption has skyrocketed. The DE 201 02 989 U1 discloses such a stationary system for detecting and tracking speeding in traffic with centralized data collection via mobile networks. Another system comes with the EP 0 593 979 A1 disclosed here, wherein the object is achieved to provide a device by the dynamic processes can be displayed, so that a high evaluation security of drivers and / or vehicle registration and a high recording capacity, for example, more than 2000 recording sequences is achieved. Local power supplies for digital mobile or stationary traffic monitoring systems, such as accumulators or solar power supplies or other generators are to be sized accordingly and are therefore expensive. Low energy consumption is an important criterion particularly in mobile systems and therefore all measures to reduce power consumption directly contribute to the usefulness of such systems.

Der Erfindung liegt die Aufgabe zugrunde, eine Möglichkeit anzugeben, die gegenüber dem Stand der Technik zur weiteren Absenkung des Energieverbrauchs von mobilen und/oder stationären Verkehrsüberwachungssystemen beiträgt.The invention has for its object to provide a way that compared to the prior art for further lowering of the Energy consumption of mobile and / or stationary traffic monitoring systems contributes.

Die Aufgabe wird durch ein Verkehrsüberwachungssystem nach Anspruch 1 gelöst. Grob besteht es aus den wesentlichen Funktionseinheiten Sensor zur Registrierung eines Straßenfahrzeuges, welches z. B. mit einer höheren als der erlaubten Geschwindigkeit oder bei Rot über eine Kreuzung fährt, einer digitalen Kamera zur Aufnahme des registrierten Straßenfahrzeuges, einem Rechner zur Speicherung aller notwendigen Daten und einer Beleuchtungseinrichtung wie eine Blitzeinrichtung, wobei bis auf den Sensor sämtliche Funktionseinhelten Im Stand-by-Betrieb verschaltet sind und sich gegenseitig oder von einem Controller nur zu notwendigen Zeiten aktivieren bzw. aktiviert werden. Der Controller kann dabei eine eigenständige Funktionseinheit des Verkehrsüberwachungssystems sein. Eine externe Anordnung ist auch möglich, wobei der Controller dann nur über Verbindungsleitungen mit den einzelnen Funktionseinheiten des Verkehrsüberwachungssystems kommuniziert. Der Controller kann dann, wenn er extern angeordnet ist, im Extremfall sogar den Sensor in den Stand-by-Betrieb versetzen, wenn z. B. die Verkehrssituation erwarten lässt, dass keine Verkehrsüberschreitungen von Straßenfahrzeugen registriert werden können.The object is achieved by a traffic monitoring system according to claim 1. Roughly it consists of the essential functional units sensor for registering a road vehicle, which z. B. with a higher than the permitted speed or driving in red over an intersection, a digital camera for recording the registered road vehicle, a computer for storing all the necessary data and a lighting device such as a flash device, with all but the sensor Funktionseinheithelten In the stand are interconnected by operation and are activated or activated only at necessary times by one another or by a controller. The controller can be an independent functional unit of the traffic monitoring system. An external arrangement is also possible, the controller then communicating only via connecting lines with the individual functional units of the traffic monitoring system. The controller can then, if it is located externally, even put the sensor in standby mode in extreme cases, if z. B. the traffic situation can be expected that no traffic violations of road vehicles can be registered.

Das erfindungsgemäße System erweitert ein Verkehrsüberwachungssystem derart, dass eine festgelegte Ablauflogik die Funktionskomponenten nur dann aufweckt und einschaltet, wenn sie gebraucht werden, ansonsten befinden sie sich im Stand-by-Betrieb. Ein ständig betriebsbereiter Sensor zur Erfassung der Verkehrsübertretung versucht durch impulsartigen Betrieb mit einem möglichst geringen Leistungs-verbrauch auszukommen. Nach der festgelegten Ablauflogik aktiviert der Sensor, bei einer Feststellung eines Ereignisses, wie z. B. einer unerlaubt hohen Geschwindigkeit, die Kameraeinheit und weckt diese somit auf. Die Kameraeinheit bleibt so lange aktiv, bis sie ein Bild erfasst und gespeichert bzw. übertragen hat und schaltet sich dann wieder in den Ruhezustand. Die festgelegte Ablauflogik bestimmt weiterhin, wann der zu dem Verkehrsüberwachungssystem gehörige Rechner aktiviert wird. Der Rechner kann hierbei durch die Kamera aufgeweckt werden oder er kann nur in regelmäßigen Abständen, z. B. bei jedem 10-ten Bild, durch die Kamera aufgeweckt und aktiviert werden. Alternativ kann in der Ablauflogik festgelegt sein, dass der Rechner in bestimmten zeitlichen Abständen aktiv wird oder durch einen externen Zugriff aktiviert wird. Der Rechner begibt sich jedoch immer wieder in den Ruhezustand.The system according to the invention extends a traffic monitoring system in such a way that a defined flow logic system only wakes up the functional components and turns on when needed, otherwise they are in stand-by mode. A constantly operable sensor for detecting the traffic violation tries to get by pulsed operation with the lowest possible power consumption. According to the established flow logic, the sensor activates, upon detection of an event, such. As an unauthorized high speed, the camera unit and thus wakes them up. The camera unit remains active until it captures and stores an image and then returns to sleep mode. The defined flow logic also determines when the belonging to the traffic monitoring system computer is activated. The calculator can be woken up by the camera or he can only at regular intervals, eg. Every 10th image, be woken up and activated by the camera. Alternatively, it can be specified in the flow logic that the computer becomes active at certain time intervals or is activated by an external access. However, the computer always goes back into hibernation.

Die festgelegte Ablauflogik wird erfindungsgemäß durch den Controller realisiert.The defined flow logic is realized according to the invention by the controller.

Die Erfindung soll nachstehend anhand von Ausführungsbeispielen näher erläutert werden. In den dazugehörigen Zeichnungen zeigtThe invention will be explained below with reference to exemplary embodiments. In the accompanying drawings shows

Fig. 1 eine schematische Anordnung eines Verkehrsüberwachungssystems Die erfindungsgemäße Sensoreinheit 1 ist so aufgebaut, dass nur die Anteile des Sensors ständig betrieben werden, die für die Signalaufnahme des Ereignisses bzw. der Geschwindigkeitsmessung unbedingt erforderlich sind. Bei aktiven Sensoren, wie Radar oder Laser, ist eine Sendeeinheit 11, die aktiv einen Wellenstrahl aussendet und eine Empfangseinheit 12, die den Wellenstrahl empfängt, ständig betriebsbereit. Ein ebenfalls ständig betriebsbereiter Schwellwertentscheider 13 weckt einen mit ihm verbundenen Detektor 14 erst dann auf, wenn durch die Überschreitung eines vorgegebenen Schwellwertes eine Detektion zu erwarten ist. Ein Messwert als Ergebnis der Detektion wird an den Controller 21 einer Kameraeinheit 2 weitergegeben. Der Controller 21 muss nicht ständig betriebsbereit sein. Er kann erst durch den Detektor 14 aufgeweckt werden. Der Controller 21 kann zur Übergabe von Parametern den Detektor 14 ebenfalls aufwecken, damit dieser die Parameter abspeichert bzw. Auskunft über die eingestellten Parameter gibt. Der Detektor 14 begibt sich selbstständig, nach der Detektion eines Eingangssignales oder nach dem Setzen von Parametern, wieder in einen Ruhezustand mit geringer oder keiner Stromaufnahme. Fig. 1 a schematic arrangement of a traffic monitoring system The sensor unit 1 according to the invention is constructed so that only the portions of the sensor are constantly operated, which are essential for the signal recording of the event or the speed measurement. In active sensors, such as radar or laser, a transmitting unit 11, which actively emits a wave beam and a receiving unit 12, which receives the wave beam, is always ready for operation. A likewise always operational threshold value decision 13 awakens a detector 14 connected to it only when a detection is to be expected by the exceeding of a predetermined threshold value. A measured value as a result of the detection is relayed to the controller 21 of a camera unit 2. The controller 21 does not have to be constantly ready for operation. It can only be woken up by the detector 14. The controller 21 can also wake the detector 14 to transfer parameters so that the latter stores the parameters or provides information about the set parameters. Detector 14 automatically goes back to sleep mode with little or no power consumption after detection of an input signal or after setting parameters.

Die Sensoreinheit 1 kann im Sinne eines geringen Stromverbrauches die Sendeeinheit 11 und/oder die Empfangseinheit 12 pulsartig periodisch immer nur kurz aktivieren um festzustellen, ob ein ausreichendes Schwellwertsignal anliegt. Erst wenn ein ausreichendes Schwellwertsignal anliegt, bleiben die Sende- und Empfangseinheit 11 und 12 eingeschaltet, bis die Detektion abgeschlossen ist. Durch die Pausenzeiten der Sende- und Empfangseinheit 11 und 12 lässt sich der Stromverbrauch zusätzlich minimieren.In the sense of low power consumption, the sensor unit 1 can only activate the transmitting unit 11 and / or the receiving unit 12 in a pulse-like manner for a short time in order to determine whether a sufficient threshold signal is present. Only when a sufficient threshold signal is present, the transmitting and receiving unit 11 and 12 remain turned on until the detection is completed. Through the break times the transmitting and receiving unit 11 and 12 can be additionally minimize the power consumption.

Bei der Sensoreinheit 1 kann es sich auch um einen Schleifen- oder Piezosensor handeln. Die Sendeeinheit 11 ist bei passiven Sensoren dann nicht vorhanden. Die Detektion beginnt erst dann, wenn ein Schwellwert des Eingangssignales überschritten wird.The sensor unit 1 may also be a loop or piezosensor. The transmitting unit 11 is then not available with passive sensors. The detection only begins when a threshold value of the input signal is exceeded.

Die Kameraeinheit 2 ist so aufgebaut, dass die einzelnen Komponenten der Kameraeinheit 2 nur dann aktiv sind und einen höheren Stromverbrauch haben, wenn dies durch die Sensoreinheit 1 oder einen Zugriff eines angeschlossenen Rechners 4 erforderlich ist.The camera unit 2 is constructed such that the individual components of the camera unit 2 are only active and have a higher power consumption, if this is required by the sensor unit 1 or an access of a connected computer 4.

Der Controller 21 in der Kameraeinheit 2 aktiviert eine Bildaufnahmeeinheit, bestehend aus einem elektronischen Fotosensor 25 und einem Fotocontroller 24 nur dann, wenn ein Foto aufgenommen werden soll. Auch ein eventuell notwendiges Löschen des Fotosensors 25 erfolgt erst unmittelbar vor der Bildaufnahme. Das auf genommene Bild wird in einem statischen Bildspeicher 26 abgelegt. Eine eventuell gewünschte Sicherung des Bildes durch eine digitale Signatur oder Verschlüsselung kann unmittelbar vor der Ablage des Bildes im Bildspeicher 26 erfolgen. Der Bildspeicher 26 verbraucht idealerweise im ruhenden Zustand keinen Strom, um die Bildinformation zu halten. Hier können Techniken wie z. B. Flash Disk vorgesehen werden.The controller 21 in the camera unit 2 activates an image pickup unit consisting of an electronic photosensor 25 and a photo controller 24 only when a photograph is to be taken. Even a possibly necessary deletion of the photosensor 25 takes place only immediately before the image acquisition. The captured image is stored in a static image memory 26. Any desired backup of the image by a digital signature or encryption can be done immediately before the storage of the image in the image memory 26. The image memory 26 ideally does not consume power in the dormant state to hold the image information. Here, techniques such. B. flash disk can be provided.

Der Controller 21 speichert die Bildinformation zusammen mit dem Messwert aus der Sensoreinheit 1 und der Uhrzeit aus einer Echtzeituhr 22 in dem Bildspeicher 26.The controller 21 stores the image information together with the measured value from the sensor unit 1 and the time from a real-time clock 22 in the image memory 26.

Eine Bildaufnahme aktiviert gleichzeitig die rechtzeitige Auslösung einer Beleuchtungseinheit 3, bestehend aus einer eigenen Controllereinheit 31 und einem Lichtsender 32. Die Beleuchtungseinheit 3 kann ebenfalls durch den Controller 21 aufgeweckt werden und sich danach wieder in einen Ruhezustand begeben, der eine geringere oder keine Stromaufnahme besitzt.An image recording simultaneously activates the timely triggering of a lighting unit 3, consisting of its own controller unit 31 and a light emitter 32. The lighting unit 3 can also be woken up by the controller 21 and then go back to a state of rest, which has a lower or no power consumption.

Die Echtzeituhr 22 der Kameraeinheit 2 ist ständig betriebsbereit. Sie ist so auszulegen, dass nur ein geringer Betriebsstrom zur Funktion benötigt wird. Typisch wird dieser ständige Betriebsstrom durch eine langlebige Batterie zur Verfügung gestellt. Ein optionaler GPS Empfänger 27 kann dazu genutzt werden, die Echtzeituhr 22 zu stellen. Ebenfalls kann der Controller 21 die Standortinformation des GPS Empfängers nutzen, um sie mit der Bildinformation zusammen im Bildspeicher 26 abzulegen. Die Abfrage des GPS Empfängers 27 kann beim Systemstart oder bei jedem Aufwecken erfolgen. Ein weiterer Speicher 23 kann vom Controller 21 dazu genutzt werden, alle Messwerte vom Detektor 14 zusammen mit der Uhrzeit und dem Standort, falls vorhanden, für statistische Zwecke zu speichern.The real-time clock 22 of the camera unit 2 is always ready for operation. It should be designed so that only a small operating current is required for the function. Typically, this constant operating current is provided by a long-lasting battery. An optional GPS receiver 27 can be used to set the real-time clock 22. Also, the controller 21 may use the location information of the GPS receiver to store it together with the image information in the image memory 26. The query of the GPS receiver 27 can be made at system startup or at each wakeup. Another memory 23 may be used by the controller 21 to store all measurements from the detector 14 along with the time and location, if any, for statistical purposes.

Der Controller 21 speichert intern wichtige Parameter, die er zur Steuerung der Kameraeinheit 2 und der Sensorseinheit 10 benötigt. Ein wichtiger Parameter ist das Auslöselimit, ab dem bei einer Geschwindigkeitsüberschreitung Bilder ausgelöst werden sollen. Sind keine statistischen Daten erforderlich, so kann der Detektor 14 den Controller 21 erst dann aufwecken, wenn eine Geschwindigkeitsüberschreitung vorliegt.The controller 21 internally stores important parameters needed to control the camera unit 2 and the sensor unit 10. An important parameter is the trigger limit, from which images should be triggered when speeding. If no statistical data is required, then the detector 14 can not wake the controller 21 until there is an overspeed.

Ein angeschlossener Rechner 4 kann durch den Controller 21 aufgeweckt werden. Eine Übergabe der Bilddaten kann erfolgen und das Computersystem 4 kann sich wieder in einen Ruhezustand versetzen. Der Rechner 4 kann auch aktiv durch eine Schaltuhr oder einen Netzwerkzugriff 41 von außen aufwachen und den Controller 21 wecken, um Bildinformationen oder statistische Daten abzufragen oder Parameter zu setzen.A connected computer 4 can be woken up by the controller 21. A transfer of the image data can take place and the computer system 4 can again put into a state of rest. The computer 4 can also actively wake up from outside through a timer or network access 41 and wake the controller 21 to retrieve image information or statistical data or set parameters.

Der Controller 21, der gemäß Fig. 1 integraler Bestandteil der Kameraeinheit 2 ist, kann in einer weiteren Ausführungsform auch als eigenständige Funktionseinheit ausgebildet sein. Der Detektor 14, der Fotocontroller 24 sowie die Controllereinheit 31 können auch in den Controller 21 integriert werden, so dass die gesamte Ablauflogik des Verkehrsüberwachungssystems durch den Controller 21 realisiert wird. Der besondere Vorteil besteht dann darin, dass der Controller 21 dann auch extern betrieben werden könnte und nur über entsprechende Signalleitungen, die nicht notwendigerweise hardwaremäßig ausgeführt sein müssten, mit dem Verkehrsüberwachungssystem kommunizieren könnte. Damit könnte dann sogar die Sensoreinheit 1 in den Stand-by-Betrieb versetzt werden, wenn die Verkehrslage, z. B. durch zeitweilige Straßensperrungen, erwarten lässt, dass keine Verkehrsüberschreitungen begangen werden können.The controller 21, according to Fig. 1 is an integral part of the camera unit 2, can also be formed in a further embodiment as an independent functional unit. The detector 14, the photo controller 24 and the controller unit 31 can also be integrated into the controller 21, so that the entire flow logic of the traffic monitoring system is realized by the controller 21. The particular advantage is then that the controller 21 could then also be operated externally and could communicate with the traffic monitoring system only via corresponding signal lines, which would not necessarily have to be implemented in terms of hardware. Thus, even the sensor unit 1 could be put into stand-by mode when the traffic situation, eg. B. by temporary road closures, can expect that no traffic violations can be committed.

Claims (7)

  1. A traffic monitoring system comprising, as essential functional units, a sensor unit for detecting a road vehicle, for example, travelling at a higher speed than allowed or going through a red light; a digital camera for recording the detected road vehicle; a computer for storing all necessary data; and an illumination device, such as a flash device, characterised in that the sensor unit (1) includes a transmitter unit (11), a receiver unit (12), a threshold decider (13) and a detector (14), that the transmitter unit (11), the receiver unit (12) and the threshold decider (13) are permanently operative, that all other functional units are switched to standby operation and are activated by the detector (14) only when a predetermined threshold value is exceeded, the detector (14) in turn having been activated by the threshold decider (13).
  2. The traffic monitoring system according to claim 1, characterised in that the transmitter unit (11) and/or the receiver unit (12) are operated periodically for short periods only in a pulsed manner and are switched on only upon detection of a sufficient threshold signal.
  3. The traffic monitoring system according to claim 1, characterised in that the digital camera (2) is switched to the active mode over the entire period of detection of the road vehicle detected by the sensor unit (1) and, when recording is complete, activates the computer (4) at first in order to carry out the transmission of the recorded images to the computer (4) and is then returned to standby operation upon completion of said transmission.
  4. The traffic monitoring system according to claim 2, characterised in that the digital camera (2), during its active status, activates the illumination device (3) upon detecting the corresponding visibility conditions.
  5. The traffic monitoring system according to claim 1, characterised in that a controller (21) is present, which switches the functional units to standby operation and/or to the active phase.
  6. The traffic monitoring system according to claim 5, characterised in that the controller (21) is disposed outside the traffic monitoring system and communicates with the latter only via junction lines.
  7. The traffic monitoring system according to claim 5, characterised in that the detector (14) activates the controller (21) when a traffic offence has been detected.
EP08841480A 2007-10-26 2008-10-23 Traffic monitoring system Active EP2212872B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007051801A DE102007051801A1 (en) 2007-10-26 2007-10-26 Traffic monitoring system
PCT/DE2008/050031 WO2009052820A1 (en) 2007-10-26 2008-10-23 Traffic monitoring system

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EP2212872A1 EP2212872A1 (en) 2010-08-04
EP2212872B1 true EP2212872B1 (en) 2011-10-12

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EP08841480A Active EP2212872B1 (en) 2007-10-26 2008-10-23 Traffic monitoring system

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EP (1) EP2212872B1 (en)
AT (1) ATE528739T1 (en)
AU (1) AU2008316120B2 (en)
DE (2) DE102007051801A1 (en)
ES (1) ES2373831T3 (en)
WO (1) WO2009052820A1 (en)

Cited By (1)

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DE102012012944A1 (en) * 2012-06-29 2014-01-02 Jenoptik Robot Gmbh Method for focusing optical imaging system i.e. lens of camera, to vehicle to be photographed, involves setting up test pattern in line of focus, focusing optical imaging system to test pattern, and removing optical system and test pattern

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CN108431879B (en) * 2015-12-31 2023-03-14 罗伯特·博世有限公司 Intelligent distributed visual traffic marker and method thereof
CN107958508A (en) * 2016-10-18 2018-04-24 中兴通讯股份有限公司 A kind of vehicle-mounted recording device and method of work
CN110533921B (en) * 2019-08-06 2021-06-18 北京万集科技股份有限公司 Triggering snapshot method and system for vehicle

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DE9214498U1 (en) * 1992-10-20 1993-01-21 Deutsche Aerospace Ag, 8000 Muenchen, De
ATE229212T1 (en) * 1994-04-07 2002-12-15 Robot Visual Systems Gmbh TRAFFIC MONITORING DEVICE
DE20102989U1 (en) * 2001-02-20 2001-06-13 Bruder Kai Achim Stationary system for the determination and tracking of overspeeds in road traffic with central data acquisition via mobile radio networks

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102012012944A1 (en) * 2012-06-29 2014-01-02 Jenoptik Robot Gmbh Method for focusing optical imaging system i.e. lens of camera, to vehicle to be photographed, involves setting up test pattern in line of focus, focusing optical imaging system to test pattern, and removing optical system and test pattern

Also Published As

Publication number Publication date
EP2212872A1 (en) 2010-08-04
ES2373831T3 (en) 2012-02-09
WO2009052820A1 (en) 2009-04-30
AU2008316120B2 (en) 2012-12-20
AU2008316120A1 (en) 2009-04-30
ATE528739T1 (en) 2011-10-15
DE102007051801A1 (en) 2009-04-30
DE112008003523A5 (en) 2010-10-14

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